Video codec help?

Update: I installed the bink video player and i'm able to watch them in their standalone player.
Ingame however the screen still goes completly black and i only hear audio.

Please go to C:\Program Files\Stardock\Totalgaming\GalCiv2 (or wherever you installed the game at), open the debug.err file you find there in notepad, and copy/paste the contents into a post here. This will give us some technical information that can help troubleshoot your problem.

Debug Message: Version v1.4x last updated on: Mon Oct 23 17:43:56 2006
Debug Message: GalCiv2 is activated.
Debug Message: Checking DX Version.
Debug Message: *********DXDiag info follows.*********
System Info
Time: 1/8/2007, 19:11:35
DirectX Version: DirectX 9.0c (4.09.0000.0904)
Machine Name: STEVEN
Operating System: Windows XP Professional (5.1, Build 2600) Service Pack 2 (2600.xpsp_sp2_gdr.050301-1519)
Languages: English (Regional Setting: Dutch)
System Manufacturer: ECS
System Model: M825VXX
BIOS: Default System BIOS
Processor: mobile AMD Athlon(tm) XP-M 1800+, MMX, 3DNow, ~1.5GHz
Physical Memory: 1024MB RAM
Page File: 585MB used, 1875MB available
Windows Dir: C:\WINDOWS


Display Info
Display device 1:
Device Name: \\.\DISPLAY1
Card Name: NVIDIA GeForce FX 5200
Manufacturer: NVIDIA
Chip Type: GeForce FX 5200
DAC Type: Integrated RAMDAC
Key Device: Enum\PCI\VEN_10DE&DEV_0322&SUBSYS_00000000&REV_A1
Display Memory: 256.0 MB
Current Display Mode: 1280 x 1024 (32 bit) (60Hz)
Monitor Name: Default Monitor
Monitor Max Resolution:
Driver Name: nv4_disp.dll
Driver Version: 6.14.0010.9371
Driver Date: 10/22/2006 12:22:00
DirectX Acceleration Enabled: Yes



Sound info
Sound device 1:
Description: SB Live! Audio [E800]
Default Sound Playback: Yes
Default Voice Playback: Yes
Hardware ID: PCI\VEN_1102&DEV_0002&SUBSYS_80611102&REV_07
Manufacturer ID: 1
Product ID: 100
Driver Name: ctaud2k.sys
Provider: Creative
Driver Version: 5.12.0001.0252
Driver Date: 7/19/2002 10:47:52
Type: WDM
Other Drivers:
Acceleration Level: 3
Cap Flags: 0
Min/Max Sample Rate: 0, 0

Sound device 1:
Description: VIA AC'97 Audio (WAVE)
Default Sound Playback: No
Default Voice Playback: No
Hardware ID: PCI\VEN_1106&DEV_3059&SUBSYS_41611106&REV_50
Manufacturer ID: 1
Product ID: 100
Driver Name: viaudio.sys
Provider: VIA Technologies, Inc.
Driver Version: 6.14.0001.3880
Driver Date: 8/19/2003 11:27:40
Type: WDM
Other Drivers:
Acceleration Level: 3
Cap Flags: 0
Min/Max Sample Rate: 0, 0



Debug Message: *********END dxdiag info.*********
Debug Message: Entering WinMain
Debug Message: ******* Starting Game Shell *******
Debug Message: Going Fullscreen
Debug Message: Preparing to change display settings.
Debug Message: Using multilsample setting: D3DMULTISAMPLE_4_SAMPLES
Debug Message: Game Resolution: 1024 x 768
Debug Message: Running fullscreen.
Debug Message: HAL (sw vp): NVIDIA GeForce FX 5200
Debug Message: D3DPRESENT_INTERVAL_DEFAULT
Debug Message: Refresh rate: 60
Debug Message: Bit Depth: 32 bit.
Debug Message: *********Checking D3DDevice Caps***********************
Debug Message: A full-color cursor is supported in hardware at high resolution modes.
Debug Message: RGB in format 6:6:6, Masks reported as ff0000:ff00:ff
Debug Message: Now Fullscreen
Debug Message: Shell initialization complete
Debug Message: ***** Initializing Game *****
Debug Message: Timer Frequency is 0 369e99
Debug Message: Initializing sound card.
Debug Message: initailizing bink
Debug Message: Create setup screens.
Debug Message: Clear galaxy settings.
Debug Message: Clear influence.
Debug Message: Clear up laws.
Debug Message: Clear first time events.
Debug Message: Clear wonders and trade goods.
Debug Message: Clear sector mapper.
Debug Message: Set mouse.
Debug Message: Set update timer.
Debug Message: Clear data definitions.
Debug Message: No files found matching mask C:\Documents and Settings\VDM\My Documents\My Games\GalCiv2\ships\*.xml
Debug Message: No files found matching mask C:\Documents and Settings\VDM\My Documents\My Games\GalCiv2\ships\*.shipcfg
Debug Message: Reading Star Names
Debug Message: Reading Star Names... Done
Debug Message: TitleWnd: Quit Button.
Debug Message: Posting WM_CLOSE message.
Debug Message: WM_CLOSE message received.
Debug Message: GameUninitialize start
Debug Message: Killing Galaxy
Debug Message: Killing threads.
Debug Message: Kiling civs.
Debug Message: Killing ships.
Debug Message: Killing rallypoints.
Debug Message: Killing misc objects.
Debug Message: Killing stars.
Debug Message: Killing anomalies.
Debug Message: Killing space resources.
Debug Message: Killing colonies and planets.
Debug Message: killing scenario.
Debug Message: Clearing Turn Event Log
Debug Message: Clear galaxy settings.
Debug Message: Clear influence.
Debug Message: Clear up laws.
Debug Message: Clear first time events.
Debug Message: Clear wonders and trade goods.
Debug Message: Clear sector mapper.
Debug Message: Clear data definitions.
Debug Message: Killing Galaxy: Completed
Debug Message: Shutting down sound system.
Debug Message: Clearing sound and music handles.
Debug Message: GameUninitialize end
Debug Message: Device not cleared. 1 counts left.
Debug Message: D3D not cleared. 1 counts left.
Debug Message: Destroying Window.
Debug Message: Main Shell terminating normally

Try turning off anti-aliasing in the options.

It worked, thx kryo